Internal-combustion engine



1930- A. M. NIVEN 1,778,911

INTERNAL COMBUSTION ENGINE Filed Feb. 23, 1928 2 Sheets-Sheet 1 gig";

u/ V y 7 N 7 a w? H J /Z INVENTOR.

B Y l 3 w ATTORNEY.

Oct. 21, 1930. A. M. NIVEN 1,778,911

INTERNAL COMBUSTION ENGINE Filed Feb. 23, 1928 2 Sheets-Sheet 2 A TTORNEY.

' Patented Oct. 21,1930 1 mrnRNAn-coMBUsTron ENGINE:

ARcH IE MiACPHAIL NIVEN,- or. amon, v v g V moronsconroasr'ron QEDETRQIT;MICHIGAN;AQQORJBORATION oFvIRemIA iarcnrenn', AssIeNon' ITO j conrmnmnig" i *n plica'iiopfiied February 23, iszsli senal no. 256,2i0.

p This invention relates to internal cornblus tion eitigines and refers more particularly to sleeve valve and like types of engines; In

this generalclass of enginesit is' ;customary v 7 onejof the engine cylinders and along1' f .l of .Fig. 3,-the sleeve valve nearing-thecomple to provide a cylinder headorother structure 7 spaced within the cylinder to form apocket receiving one or-more sleeve valves. Inc'ertain well known types of sleeve valve" engines such as the Knight orthe Burt-McCollum for ekample, the sleeve ports are Inovedinto the sleeve pocket usually during the firing of the charge whereby the sleeve ports are,

cooled. .It is known that the sleeve pocket tends to accumulate what is generallyknown as sludge, being in the nature of carbon,"

oil; residue constituents-of. the intake and exhaust gases, and the like; It hasheretoforebeen necessaryv to periodically remove. the sludge accumulation by dismantling the cylinder head and scraping awaythe deposit since the accumulation interferes with the proper operation of the sleeve valves, pro

duces overheating in the region of the sleeve pocket and otherwise interferes with thede- I sired efficient and smooth running qualities 0 1 c I or tne engine.

I have invented means removing the matter which finds its way to the sleeve pocket. Ifsuch matter is removed periodical ly it may be disposed oi without difiiculty accordingto my invention, 'preferablybefore any great accumulation is experienced in the sleeve pocket. When permitted to a ecumulatethis matter is acted upon by the heat of the engine and in time carbonizes and becomes heavily incrusted in the sleeve pocket. My invention provides for period ically removing the sludge by means preferably automatically responsive to operation ofthe engine whereby the sleeve pocketwill be maintained substantially'freefrom the objectionable deposits. I prefer to pro vide suction means acting periodically as aforesaid as'I have found. that ingenemi a suction when applied constantlyto the sleeve pocket tendsto produce an undueaccumulation of sludge injthe-fpocket whereas a periodic suction does notinthis respect aporeciably alter the normalio'pe'rating condi 7 V,

V 12sofas-to establish theldesired suctionflin the;

'tion produced I bv the a usual engine piston Rearin to: the atetap'an ng d awin s; l illustratinggone-embodiment 0t my-inven;

- :Fig" listed seam elevati6 vievvtl toiisli Figs,- 3 'andfl are diagrammatic develop-,

mentsof the sleeve and cylinder ports and associated parts, the sleeve position, ree

spectivelycorresponding to Figs; land-2i?" In he d wi s il av hown, rl trating my invention, asleeve valve engine of the .Bur't-iMcCollumf type in whichj a ported single sleeve valve has a combined,

reciprocating. and V oscillating movement p roif ducing the valving functions ,of the, engine as generally well known in thela'rtIaThus the cylinder A formed in cylinder block has intake and exhaust. ports :10 and ll rea jspectiyel the sleeve,,valve1B ,having intake ports 12- and exhaust ports 13 respectively co-Q operating with the corresponding cylinder ports. Any, wellknown or suitable mechanism (not shown) i may lee-employed for moving. the sleeve in the: customary path 14,1 for examplepany-point onthe sleeve such as the point lo moving in such path.

k The, cylinder headB closes the'cylinder; be:

; ing' provided "with a "re-entrant or depending portion 16 spaced within the cylinder' end to. provide an annular pocket 17 of suitable "ca-.

7 c fl raa' pacity to accommodate. the number of sleeve p valves employed and the movement thereon; i

c i In. orderllto lefl'ect the removal ofmatter tending} to accumulate in thepocketljf'as' aforesaid, l 'havelprovidedlone or more 0on duits' suitably positioned so as to' communi I cate; with, the sleeve pocket and with, one or. more of the sleeve intake ports during at least a portion of the intake cycle wherebythe suc reciprocating. withinthe'jsleeve will eifecta suction in the sleeve pocket. Thus the cylin derllinay be iformed with a conduitvl 8 'suita bly located with respect to a sleeve intake port sleevepocket. Thus in Figs. 1 and 3 the in take cycle is nearing completion, (the usual i of the-conduitlSand port- 12." The sleeve valve continuing its travel as indicated bythe arrow on the valve path 15 moves the ports12 time forv the usual four strokecycle occupies the position shown in Figs. 2 and 4. Inthese figures the ports 12 are spaced aboVe;the-'bot, tom edge of the cylinder head and consequent-- sealeid against escape Off gases to the pocket I7; seedling ringQO ivhen'desiredfurther V sealing the pocket.

Any leakage past the sleevevalve to the sleeve pocket will be rem v l suction to the' engine Working chamber, this" suction inthe present embodi ment of my invention,- acting once foreach t w hthe vv'orking chamber cycleef the engine. 7 During the compression, worki g; and exhaust strokes ef the engine thecendtiels is free from c'ommunication wvith the Working chamber 1 9as' W1ll be 7 readily apparentfrom the valve diagrams 1n- Figs. 3 and 4. I

While I have illustrated my invention'in connection with the singlesleeve' Burt-M0 Collum type of engine, it vvill be apparent that the teach ngs of'my invention are also adaptable to advantage in other types of sleeve valveengines, or in engines having sleeve bf" generally similar pocket-s tending to 4 it Other ttenuat 5bje eonab1e matter, niedifications ofiny invention 'Will also sug- 'g-ea themselves and 'it is not myinte'ntion to 1i it y; inve ionexcept as'specifically set forth'intheappended T v jWhatI claim as my invention'is:

' 1. In an en ine mm sleeve valve type; a

cylinder providing a Working chamber, sleeve valve meansasseciated' With'the cylinder, a

1 sleeve pocket structure accommodating the sleevevalvef nieans, conduit communicating wvithith s1eeve' oka,a d means periodically.

pfodt a suction in said conduit, said sleeve pack-auburn. free frcm communication II during the Work- 'ihg-istmke Qf l fi lle l i l 2, 111 eng he of the sleeve valve type, a cylinder providing a vvorking chamber, sleeve valve" nieans associated with the cyllnder, .a I sleeve pocket structure accommodating the sleeve'valve means, aconduit communicating with the sleeve pocket, and means controlled thesleeve valve means for periodically menacing 'a fsuction in said conduit,' said sleeve ocket being free from communication t he 'vverliing chamber during the engine Working mak I I II I In an eng'ne of the sleeve valve type," a

cylind prov di 1ga.Workingchamber;sleeve i val've Ihean'sassociated with "the cylinder,'a

I I I 5 ing stroke. outefcommunication With the portsnl0 for (the usual piston nearingi -ts 'upn; Ward compression stroke). The sleeve at this sle tpo ket u sleeve valve means, a conduit communicating with the W'orkin sleeve pocket structure accommodating the I sleeve valve means, a conduit communicating I I I F 11511173 er; sleeve valve means" associated wl'tll the cylinder, a ructure accommodating the with the sleevepocket; and means responsive to opIeratlon of the engine for producing a suction 'ineai'd-coneua during one cyclical" event" of each cycle of engine" operationys'aid sleeve pocket being. free.from'communi'cation ing cy'clica'l events/u A I v I In an eng ne of the sle'eve'valve typeja cylinder, sleeve valve means associated'with I the cylinder, a sleeve pocket structure acQOmmodating the sleeve valve means, and means including a cenduitfor periodically placing the sleeve pocket in communication'tvith'the engine Working chamber.- I i V r 6'. In an-engine of the sleeve valve type, a cylinder; sleeve valvemeans associated With the cylinder, a-sleeve pocket structure accommodating the sleeve valve means, and means including a conduit for periodically placing I the; sleeve pocket 1n communication with "the engine. Working chamber during at least a portion of-thefengine' intake.

I. In an engine having a Werking chamber,

ac nnder having an'intake pert, sleevevalve means ported to control communication between the cylinder intake Part and working chamber, v a sleeve pocket 7 structure fer the sleeve valve means,j and means establishing commun cat on between theslee'vepocket and the engine Working chamber only .W'llfill I the cyllnder lntake port-ism communication with the Working chamber. I I I 8. In an engineofthe' sleeve valve typega cylinder, sleeve valvemeans associated'ivith the cylinders "a. sleeve pocketstructure accommodating the sleeve valve meansfa conduit connn'unic'ating Withthe' sleeve pocket and means prcducing asuction in said conduit g chamber during the remain-- with the sleeve-pocket, andm'eans responsive ito only durin'gfat "least a portion otthe engine intake. '1;

' 1 9. aa'engine having a Working chamhen, a cylnider having an intake port, at least one sleeve valve: hav ng an lntakeport con trolling th e cylinder intake port; a p oeke't structure i forwthe sleeve valve spaced above said Cylinder intake pert, and means effective when the Working chamber is'in. communication with the cylinderfintake port for establishing' communication directly between the sleeve valve intakeport and the sleeve pocket; 10; "Inch engine a cyliinler valve means centrolling the engine intake and exhaust, a

- inder ports,acylinder-headclosing the cylin-rl der end and havlng EL'POItlOll depending withe" 7 valve, and a, conduit communicating with said pocket and with a port; of saidsleeve valve;

chambercooperating with-the valve ineans and suction means periodically-acting to remove. sludge; accumulations j, from the valve. chamber. r

' 11.;Inan-engine, a cylinder portedtor i-n-r take; and exhaust, a sleeve valve having a com bined, reciprocating and oscillating ,,n1ove ment and portedfor cooperation.witlnthe cylinder ports, 'a'cylinder head closing the cylinder end'andfhaving a portion depending 1 within the cylinder to priovide pocket Vac-ccommodating the: upper ;,.end of. the sleeve valve, :and means controlled by' the. sleeve valve for removing sludge fI'OIIl SfilCl pocket.

12. lnanienglne, a cylinder ported for intake and exhaust,a sleeve valve shaving a-c'om-.

binedgreciprocating and oscillating movementand ported for 'cooperation with the cylin the -"cylinder to provide a pocket accommodating the upperend of the'sleeve valve, a

conduit communicating with said pocket, and

means controlled by said. sleevevalve for'.pro-:

ducinga suction-in said conduit; 13-. In an engine, a cylinder ported for in take and exhaust, a sleeve, valve. having T a combined reciprocating and oscillating movement and ported-for cooperation with the cylinder ports,-,a cylinder head closing the cylinder end and having a'portiondepending within the cylinder to provide a pocket accommodating the: upper end of the sleeve during at, least aiportion of the 'engineina e-1 5 i v 5 Q 14. In an engine, a cylinder, a sleeve valve,

a sleevepocket,said cylinder-and sleeve valve having cooperating intake and exhaust ports,

and a conduitcommunicating with the pocket and with one of said sleeve ports when the latter is in registration with its cooperating cylinder pOItm" 7 g I v 15. In. an engine, a cylinder, a sleeve valve, a sleeve pocket, said/cylinder and sleeve valve having cooperating intake and exhaust ports,cand' a sludge removing conduitcome 'municating with the pocket. and with the sleeve intake portwhen the latter is in regis-i tration with its cooperating cylinder: intake port. i l6.

der, a sleeve pocket structurejaccomrnodat ing the sleeve valve; means, a sludgej con-.-:

ducting conduit fcommunicating with the sleeve pocket structure, and meanscausing periodic removalnof sludge from the sleeve pocket structure throughi the' said conduit, said sleeve valve means shielding said con}; duit. against 1 entry thereinto of the fuel mixture duringcompression thereof in the work; I ing chambenas 1 In an engine of the sleeve-valve a cylinder providing a working chamber, sleevefvalve means associated with the Cyl1l1,-

- In aniengineiot the sleeve. valve type 7 a, cylindenllproviding a; working chamber,

sleeve valve vllleansiasjsociated with the cyl-in'-;; der, asleeve pocket: structure accommodating the sleeve valve means',,a sludge conducting conduit communicating with the, f. sleeve pocket structure, and :means responsive-to sleeve; pocket Y structure. ,lthroug'h the z 5 said and during running ofzthe engine for causgp q lc 'emoval of; sludge from they 'conduit, .said{conduit being shielded againstv H entrythereinto of'the fuel mixture during compression thereofin the working-chamber l ,18. ;Inan'engineofjthe sleeve valve type a; cylinder providing 1 a aworking-v chamber, sl'e'evevalve means a'ssoclated with the' cylin,

der, said; cylinder providedwith :an-gintake f port and 'an exhaust port'controlled by said; p v

sleeve valve means, a sleeve. pocketstru'cture I I accommodating the, sleeve'valve means, and means includlng a, conduit communicating with the sleeve pocket'constructed. ,and

ranged to remove sludgeaccumulations from the sleeve pocket, said conduit being free 2Q from communicationlwith the working. cha n ber during at least ajportion ofeach cycle of engine o'perationq c 19.? In an eng1ne,,aj working chamber, valve means controlling theinta'ke. to'fand; exhaust from said cliamemanating her; respectively, pocketrcooperating with v the. valve means "and protected againstcominunication wlthi-the working chamber dur". ing the engine work ngstroke,. and suction accumulations; from the pocket.

means periodically acting to remove, sludge 20; A sleeve valve engine comprising in combination, v a cylinder v p rOV,iding a h working chamber, sleeve valve means Within the cylinder", a cylinder 7 head: depending within the sleeve'valve means and providing a sleeve v pocket, ,aipiston within the sleeve valve means, said sleeve pocket. being free from communication "with the working chamber during theworklng stroke ofthe englne, a

the sleeve valve .means for introducing :fuel;

port into the 'Iworking' chamber, and; means cylinder intake portlfspaced axially. of the; 4 cylinder tromthe. sleeve .pocketcontrolled by mixtureydirectly'. from the cylinder, intake 7 whereby thesleeve pocket' is placedv in com-v munication with the working cha'mberdu'r sleeve valvemeans and'providing a sleeve pocket, apiston iwi-thin the sleeveivalve communication the fworking =;c hambe11 during :the working "stroke of r the engine,- a cylinder intake portfcontrolled"byjthe sleeve valve means for introducing fuel. miXturedi:

means, said'sleeve pocketlbelng freeirom jl-B rectly from heather intake port into the working chamber; and meansvvherehy the sleeve pocket is pl ed;- in communication with the working chamber during a portion onlybtt'he engine intake.

22. an sleeve valve engine comprising in, COmbIHatIOIl, a cylinder providing a working chamber, 'sleeve valve means within the cylinder, a cylinder head depending within the sleeve valve means and providing. a sleeve pocket, a piston within the-sleeve valve means, s'aid'sleeveupocket being nee from communication "with the working-chamber during the Working stroke of the engine; a

cylinder intake port controlled by the sleeve" valve means fer introducingfuel mixture directly from the cylincler intake port into the V 7 working chamber; and means whereby. the.

7 cylinder, cylinder head depending within the sleeve valve meansand'providinga sleeve sleevc pocket is placed in communication with thGj WQiklng--Cl1ilIib6I during the suction strokc of the piston, said sleeve pocketbeing otherwise closed; Y v i r 23; A sleeve valveengine' comprising in combination, a cylinder providing a .working chambergi sleevevalve means within the pocket, a piston Within the sleeve valve 7 means, said sleeve pocket being free from communication withfthe working chamber" during. the WOrking stroke of the engine, a cylinder intake port controlled by the sleeve valve me'ans" for introducing fuel mixture directly from thecylinder intake port'into the working chamber,' and'fmeans whereby the sleeve pocket is placed in communication With the wo'rking'chainber during a portion only oi' th'e suction stroke of the piston, said sleeve pocket being otherwise closed. 7

2 lfii y-sleeve valve engine comprising in combination, a cylinder providing a. Work- Zing chamber, sleeve valve meanswithin the cylinder-{a cylinder head depending Within the sl eve valve means and providing a sleeve pocket, a piston within the sleeve valve means said sleeve pocket being free from comm'unicationwith the working chamber during the workin'g stroke. of the engine; a cylinder intake port controlled by the sleeve valvemeans for introducing .fuel mixture directly from the cylinder intake port into the working chamber, and means whereby the. sleevelflpocketiis placed communication with the working chamber during only the latter'portion' of-the suction stroke vof thev piston. J

' 25.1 sleeve valve engine comprising in combination, a cylinder providing-a working chamber a sleeve valve means Withinthe cylinder, a cylinder liead depending within the sleeve valve means and p-roviding' sleeve pocket; a; piston within: the sleeve .valVe means saidisleeve pocket being free from= commun cation with the Working chamber during the working stroke'of the engine, a cylinder intake port controlled by the sleeve" valve mealnstcr' introducin 'f uel mixture directly fromthe cylinder intake. port intothe 7 working chamber, and meansvvhereby the sleeve poc'lretis placed in communication;

with the working chamber during only the v latter portion ofthesuctionstroke of the piston, said sleeve pocket being otherwise closed.

- 3 261A sleeve valve "enginecomprising in combination, a cylinder providing a workinder intake andlexhaust ports arranged substantially in common plane-perpendicular to the cylinder axis, and means" placing the sleeve pocket in communication with the inengine.

take chamber during the suction stroke of the -27. A sleeve valve engine comprising in V combinatwma cylinder providing a working chamber, sleeve valve "meanswithin the cylinder, a cylinder'head depending" within the sleeve valve means andproviding a sleeve pocket, a piston Within the sleevevalve'means, said sleeve pocket being free from commentcationwvith the working chamber during the Working stroke of theengine, cylinder intake and exhaust ortsfarranged substantially in a common p aneperpendicular fto the cylinder axis, an'd'mcans placing" the sleeve pocket inicommun'ication with the. intake chamber during thesuction'strol're of the engine, said sleeve-pocket being other-Wise 28. A sleeve valve engine Comprising in combination, a cylinder member providing a 7 working chamber sleeve valve means therein,

a cylinder head .member depending ,within the cylinder memberto provide a sleeve pocket accommodating the sleeve valve I means,-cooperat1ng intake portmg means for r the cylinder member and sleeve valvemeans,

and meansWincluding the intake porting means of the sleeve valve means for placing the sleeve'pocket in communication with the Working chamber during the piston suction stroke, said sleeve pocket :being otherwise closed..g--r I a r '29. A sleeve valve engine comprising inv combination, a-cylinder member providing a working chamber, sleeve valve means therein,

a cylinder head member depending within the cylinder member to provide-a sleeve.

pocket accommodating the sleeve valve means, cooperating intake porting means for the cylinder member and sleeve valve ineans,

acondu'it provided-V by one of saidmembers opening at one end thereoff-intoj the sleeve pocket and having its other end positioned "the infake ortin for -regi str at ion with means during the means of the sleeve alve piston suction stroke. l In witness whereof, I hereunto subscribe.

- my name this 16th daynf February, D."

1928; v I V ARCHIVE MACPHAIL NI E 

